Abstract

A preliminary analysis of Global Atmospheric Sampling Program (GASP) data has been made to explore the character of mesoscale atmospheric wavenumber spectra. The results show a k −5/3 spectral slope over spatial scales ranging from about 100 km to about 400–700 km. At larger scales there is evidence of a transition to steeper wavenumber dependence. These results are briefly discussed in terms of two-dimensional stratified turbulence and internal waves. DOI: 10.1111/j.1600-0870.1983.tb00213.x

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